Pilot-coupling for locomotives.



e. VJM'ARTIN.

PILOT GOUPLING FOR L000MOTIVB8.

' APPLIOATIOR FILED AUG. 16, 1910.

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G. V. MARTIN. PILOT COUPLINGYFOR LOCOILQTIVES. APPLIOATION FILED we. 16, 1910'.

' 1,022,859. A PatentedAp'r .9,1912.

z snnnws-snnnmi WITNESSES IT D EE Z L GEORGE v. MARTIN, or CLEVELAND, oHIo. ASSIGNOR TO THE nnrio'mrr. :MLLLLEA'BZE" 'cnsrmqs'conrm, or CLEVELAND, 01110, A CORPORATION orfori'roj PILOT-COUPLING FOR LOCOMOTIVES.

1,022,859. I if v line II-II of Fig. 1, and Figs. 3 and 4t are respectively the follower.

.My invention hasrelat'ion to pilot cousectional and, front views of plers for locomotives, and is designed to provide a coupler of this type, having means of novel and eflicient character for opposing a'yielding resistance under bufling strains.

The nature of my invention will be best understood by reference to the accompanying drawings, inwhich I have shown the preferred embodiment thereof, and which will now be described, it being premised, however, that variouschanges may be made in the details of construction and arrangement of the several parts, without departing from the spirit and scopeof my invention as defined in the appended claim. I

In the drawings, 2 designates a couplerhead of well known automatic type, having a pivoted knuckle 3, and carried by a rearwardly extending shank 4. This shank extends backwardly into a pocket-casting 5, to which it is pivoted by means of the usual pin 6. The pocket 'casting 5 is secured by means of bolts or rivets to the pilot-beam 7 of a locomotive, This pilot-beam is cast with a pocket 8, the forward end of which is enlarged, "and in which is seated a follower-member 9. The forward end of the follower-member is concave, as indicated at 10, and is adapted to receive the convex end 11 of the coupler shank.

12 are springs within the pocket 8, whose rear ends abut against the base portion of the pocket, and at the forward ends seat against the follower 9.

The upper end of the pin 6 has a head 6*, which is flattened at opposite sides, and'lies between lugs 13 on the pocket casting 5, and which prevent the pin fromturning. The pin fits snugly in the apertures in the top and "bottom -wall- .-of the opening in the Specification of Letters Patent. -Applieation filed August 16, 1910. Serial No. 577,500.

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pocket casting, but the coupler shank is elongated ini a -horizontal direction to permit the shank tomoverearwardly without bringing strain upon the pin. When such rearward motion takes place, as in buffing strains, the rear end of the shank bears against the follower 9, which in turn bears against the bufiing springs 12 which resist such rearward movement. lVhen the stress is removed, these springs return the coupler to its normal rclationship with the other parts, so that the rear wall of the aperture in the shank comes into engagement with the pin. In pulling, there is no yielding resistance offered, but the coupler shank bears directly against the 'pin which is rigidly secured within the pocket, as above described.

The pin may pass either directly through the elongated aperture in the coupler shank,

or, as illustrated in the drawings, there may be a bushing 14 with a suitable elongated orifice inserted Within the aperture withinthe shank before the pin is inserted.

The'pocket casting 5 has a horizontally extending shelf 15 upon its under side for the purpose of giving additional support to the coupler head. T is shelf is so designed that it does not prevent either longitudinal or lateral movement of the coupler, which is necessary. The bottom of the coupler head just in advance of its junction with the shank is extended downwardly as indicated at -16, and has a flatunder surface adapted to engage the shelf.

VVhenthe parts are in normal position, the springs tend to force the follower and the coupler shank far enough forwardly so that the,wall of the elongated aperture in the. coupler shank comes into contact with the pin. In pulling, the rear wall of the aperture in the shank has a bearing against the pin, but in bufiing the elongated slot in the shank through which the pin extends permits of rearward movement of the conpler shank to the extent allowed "by the or pulling strains. The extendin shelf for supporting the forward end of t e coupler will greatly assist in keeping the coupler in line with the follower, by preventing the forward end from sagging.

inventionv is applicable not only to locomotives, butalso to the end sills of tenders and also to the end .sills ofother cars, such as hot metal cars, etc.

'I claim:

In acoupler of the character described, an

end sill or beam having a pocket therein, a

Separate pocket member secured to the sill beam and extending forwardly therefrom, the pocket in said member being open at its rear endin line with the pocket of the beam, a ecoupler' shank extending rearwardly into the pocket of the member and 15 pivoted thereto, said shank being arranged to move longitudinally within said pocket, and a follower in engagement with the rear end of said shank, together with springs seated behind the follower, substantially as 2.0 described. I I

In testimony whereof, I have hereunto setmy hand.

GEO. V. MARTIN.

Witnesses I HARRY E. ORR, CHns'rnR K. BROOKS. 

